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Taiwan Semiconductor Corporation 1V5KE15CA
- Part No.:
- 1V5KE15CA
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-201AD, Axial
- Datasheet:
-
1V5KE15CA.pdf
- Description:
- TVS DIODE 12.8VWM 21.2VC DO201AD
- Quantity:
- Payment:
- Shipping:
Inventory:6,898
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Product details
Overview
1V5KE15CA from Taiwan Semiconductor is a bidirectional 1500W transient voltage suppressor (TVS) diode in DO-201 package, with breakdown voltage 14.3–15.8 V at 1 mA test current, reverse stand-off voltage 12.8 V, clamping voltage 21.2 V at 71 A peak pulse current, and operating junction temperature range −55 °C to +175 °C. It protects power rails and I/O lines in industrial motor drives against ESD and inductive switching transients.
For engineers reviewing the 1V5KE15CA datasheet, 1V5KE15CA pinout, 1V5KE15CA application, or 1V5KE15CA equivalent, key selection criteria include bidirectional clamping performance at 1 ms pulse, low incremental surge resistance, sub-1 µA leakage above 12.8 V, RoHS/halogen-free compliance, and DO-201 mechanical compatibility with high-reliability board-level surge protection layouts.
Technical Context
This bidirectional TVS diode operates symmetrically in both polarities, enabling robust protection of AC-coupled or floating signal paths without polarity constraints. Its glass-passivated junction ensures stable breakdown characteristics and low leakage under sustained reverse bias up to VRWM = 12.8 V.
The device delivers 1500 W peak pulse power per JEDEC standard (10/1000 µs waveform), with clamping voltage VC = 21.2 V at IPPM = 71 A - a critical parameter for limiting downstream voltage stress during fast transients such as EFT or lightning-induced surges.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 14.3–15.8 V @ IT = 1 mA - defines minimum voltage at which TVS enters avalanche conduction during surge events |
| Reverse Stand-off Voltage VRWM | 12.8 V - maximum continuous DC or RMS voltage the device blocks without significant leakage |
| Clamping Voltage VC | 21.2 V @ IPPM = 71 A - peak voltage seen by protected circuit during 10/1000 µs surge, directly limiting IC stress |
| Peak Pulse Power PPPM | 1500 W @ Tp = 1 ms - energy-handling capacity for standardized lightning/surge immunity testing |
| Junction Temperature Range | −55 °C to +175 °C - supports operation in harsh environments including automotive under-hood and industrial power converters |
| Leakage Current IR | <1 µA @ VRWM - ensures minimal power loss and signal integrity degradation in standby or low-power modes |
| Package | DO-201 - industry-standard axial-leaded package with UL 94V-0 molding compound and tin-plated leads |
Pinout & Package
DO-201 package: axial-leaded, cylindrical body with cathode band marking for unidirectional variants; for 1V5KE15CA (bidirectional), polarity marking is non-functional - terminals are symmetrical and interchangeable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Surge current path | Both terminals conduct identically during positive or negative transients - no directional bias required in layout |
| Case | Mechanical mounting surface | No electrical connection; thermal path to PCB copper for limited power dissipation during repetitive surges |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR over lifetime and improved reliability vs. epoxy-passivated alternatives in humid or thermally cycled environments |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ESD), improving clamping predictability below 21.2 V |
| Fast response time <1 ns | Activates before sensitive downstream components (e.g., microcontrollers, RS-485 transceivers) experience damaging overvoltage |
| RoHS and halogen-free compliance | Meets IEC 61249-2-21 and global environmental regulations for industrial and consumer electronics manufacturing |
| JEDEC DO-201 mechanical standard | Enables drop-in replacement in existing designs using legacy 1.5KE series, with verified solderability per J-STD-002 |
Applications
| Industrial Motor Drive Protection | RS-485 Communication Line Protection |
|---|---|
Use Scenario: Suppresses inductive kickback from relay coils and contactors in PLC output modules. IC Role / Device Role / Timing Role: Bidirectional clamping element placed across DC supply rail or coil terminals to limit voltage spikes to ≤21.2 V. Use Value: Prevents latch-up or permanent damage to driving MOSFETs and optocouplers during frequent switching cycles. |
Use Scenario: Shields half-duplex RS-485 transceivers (e.g., MAX485) from ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS connected between A/B differential lines and ground to clamp common-mode surges. Use Value: Maintains signal integrity at data rates up to 10 Mbps while surviving ±15 kV contact ESD per IEC 61000-4-2. |
| AC-DC Power Supply Input Stage | Smart Meter Surge Immunity |
Use Scenario: Protects bridge rectifier inputs and bulk capacitor charging circuits from lightning-induced surges on mains lines. IC Role / Device Role / Timing Role: Primary-level TVS placed after MOV but before fuse, handling residual 10/1000 µs surges exceeding MOV clamping. Use Value: Extends system-level surge withstand capability to 4 kV line-to-line per IEC 61000-4-5 Level 3 without derating upstream components. |
Use Scenario: Secures metering IC analog front-end inputs (e.g., current shunt amplifiers) against conducted transients via utility grid coupling. IC Role / Device Role / Timing Role: Secondary-side TVS on voltage reference or ADC input lines, leveraging low leakage (<1 µA) to avoid measurement drift. Use Value: Enables Class 3 accuracy retention under repeated 2 kV fast transient bursts per IEC 61000-4-4. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ15CA (Bourns) | Same 15 V nominal breakdown, but 600 W rating (vs. 1500 W); DO-214AA (SMB) package vs. DO-201 | Limited to lower-energy transients; unsuitable for 10/1000 µs lightning tests requiring ≥1000 W | Select only when space-constrained layouts demand surface-mount and surge energy is ≤600 W |
| 1N6275A (ON Semiconductor) | Identical electrical specs (VBR, VRWM, VC, PPPM); same DO-201 package; legacy JEDEC part number | No functional difference - direct second-source for long-term supply continuity | Preferred for dual-sourcing programs where Taiwan Semiconductor allocation is constrained |
Compared with SMBJ15CA and 1N6275A, the 1V5KE15CA offers higher surge energy margin than SMBJ15CA and identical performance to 1N6275A with updated halogen-free and RoHS-compliant materials per IEC 61249-2-21.
Availability
1V5KE15CA is available at Aetrix Electronics and suitable for industrial motor drives, RS-485 communication interfaces, and AC-DC power supply input stages requiring stable component supply and full compliance with IEC 61000-4-2/4-4/4-5 immunity standards.
Supply support for 1V5KE15CA includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Taiwan Semiconductor Corporation (TSC) is a vertically integrated semiconductor manufacturer specializing in discrete power devices, TVS diodes, rectifiers, and MOSFETs, with ISO 9001 and IATF 16949 certified facilities.
The 1V5KE series was designed specifically for high-energy transient suppression in industrial automation, power conversion, and smart infrastructure systems where reliability under repetitive surge stress is mandatory.
FAQ
What does the "CA" suffix indicate in 1V5KE15CA?
The "CA" suffix denotes a bidirectional configuration - meaning the 1V5KE15CA provides symmetrical clamping for both positive and negative voltage transients. Unlike unidirectional variants (e.g., 1V5KE15A), it has no cathode marking and functions identically regardless of terminal orientation, making it ideal for AC-coupled or floating signal paths where polarity is undefined.
How does 1V5KE15CA compare to 1N6275A in terms of electrical performance?
The 1V5KE15CA and 1N6275A share identical electrical specifications: VBR = 14.3–15.8 V, VRWM = 12.8 V, VC = 21.2 V at 71 A, and PPPM = 1500 W. Both use DO-201 packaging. The 1V5KE15CA is a modern rebranding with updated environmental compliance (halogen-free per IEC 61249-2-21), while 1N6275A remains a legacy JEDEC-designated part - functionally interchangeable in all designs.
Can 1V5KE15CA be used in place of a unidirectional TVS like 1V5KE15A?
No - the 1V5KE15CA is strictly bidirectional and lacks polarity-dependent functionality. Substituting it for a unidirectional 1V5KE15A in DC-biased applications (e.g., protecting a 12 V supply rail referenced to ground) may result in unintended conduction during normal operation. Always verify circuit topology: use 1V5KE15CA only where symmetrical clamping is required, such as across differential pairs or AC lines.
What is the maximum allowable mounting temperature for 1V5KE15CA during reflow or hand-soldering?
The 1V5KE15CA's pure tin-plated leads comply with J-STD-002 for solderability, supporting peak reflow temperatures up to 260 °C for ≤10 seconds (per IPC/JEDEC J-STD-020). Hand-soldering should not exceed 350 °C for <3 seconds per lead. Exceeding these limits risks compromising the glass passivation layer and degrading VBR stability or increasing IR leakage.
Does 1V5KE15CA meet IEC 61000-4-2 Level 4 ESD immunity requirements?
Yes - the 1V5KE15CA's sub-1 µA leakage at 12.8 V and 21.2 V clamping voltage at 71 A enable robust protection against ±15 kV contact and ±25 kV air-gap discharges per IEC 61000-4-2 Level 4. When placed within 2 cm of the protected port with low-inductance grounding, it reliably limits voltage on downstream ICs to safe levels without oscillation or follow-on conduction.
1V5KE15CA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-201AD, Axial
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 12.8V
- Voltage - Breakdown (Min):
- 14.3V
- Voltage - Clamping (Max) @ Ipp:
- 21.2V
- Current - Peak Pulse (10/1000µs):
- 71A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-201AD
1V5KE15CA FAQ
1.How can I place an order for 1V5KE15CA through Aetrix?
Please submit a Request for Quotation (RFQ) for 1V5KE15CA on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for 1V5KE15CA reliable?
The price and inventory of 1V5KE15CA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1V5KE15CA is usually 5 days.
3.What payment methods are accepted for 1V5KE15CA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1V5KE15CA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1V5KE15CA?
1V5KE15CA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1V5KE15CA order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for 1V5KE15CA?
For technical support, including 1V5KE15CA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1V5KE15CA requirements.
6.How does Aetrix verify that 1V5KE15CA is sourced from the original manufacturer or authorized distributors?
All 1V5KE15CA products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 1V5KE15CA meets industry standards.
7.What is the process for return or replacement of 1V5KE15CA?
All 1V5KE15CA units undergo pre-shipment inspection (PSI). If there is an issue with 1V5KE15CA, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The 1V5KE15CA part is unused and in its original packaging.
Return procedure for 1V5KE15CA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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